Plug-receiving



May 1, 19 23. w

w. 5. MAYER PLUG macmvma WALL OUTLET Filed June 2'2, 1921 Patented May 1, 1.923.

UNITED STATlilti WALTER MAYER, OF PHILADELPHIA. PENNSYlfl/"Alfi'T/h, ASSTG-NOPV TO HEINEMANN ELECTRIC COMPANY, PENNSYLVANIA.

0.15 PHILADELPHIA, PENNSYLVANIA, A. CORPORATION PLUG-ILEOJETVINE'r "WALL OUTLET.

Application filed .Tune 22, 1921.

T all whom it may concern Be it known that T, lVALTnn S. ll TAYER, a citizen of the United. States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain Improvements in Plug-Receiving lVall Outlets, of which the following is av specification.

This invention relates to the bases of plug switches and its primary object is to provide an insulating receptacle having a novel construction of simplified character together with electrical connections housed therein, designed to reduce the number of parts, facilitate assembly, and provide an efficient device of simple character at low cost.

The characteristic features of the invention are specified in the following description and the accompanying drawings in illustration thereof.

In the drawings, Fig. 1 is a top plan view of a receptacle embodying my improve ments; F 2 is a. bottom plan view of the same with parts removed; Fig. 8 is a sectional view taken on the lin 3 -3 of Figs. 1 and 2 of the assembled construction; Fig. 4 is a perspective view of a unitary bifurcated contact detached from its connection with the insulating base block, and 5 is a perspective view of one of the angular electrical couplings for connecting the contacts with the electric wires.

The invention, in the form thereof illustrated in the cbawings, comprises the porcelain base block 1 which is provided with the usual metallic lugs 2 for fixing it in a wall box or recess and for holding a plate thereon, and with the usual pairs of openings or passages 3 and 4 for the reception of the base block contacts together with the con-- tacts of different forms or plugs.

The block 1 has in the back thereof the similar recesses 5, similarly disposed with reference to openings or passages 3 and 4;, each recessintersecting a pair of such open ings.

Unitary bifurcated metallic contacts, Fig. 41.. comprise respectively a base 6 containing: the screw hole 7, by which it is adapted to be fixed in a recess 5, and parallel legs or bifurcations 8 and 9, having; angularly disposed resilient lugs, adapted to extend into respective openings 3 and 4:.- These contacts, it will be understood, are of such character Ficrial No. 4:79AM.

that they can be stamped out of sheet metal and bent to shape very simply.

On piece electrical couplings, 5, comprise, respectively. a sect on 10, adapted to fit in a recess 5, which section bears against a base 6 and. has a threaded hole 11 adapted to register with the corresponding hole 7, a screw 12 passing through each hole 13 in the block or receptacle and through the corresponding holes 7 and 11. to secure the parts together. The respective sections 10 have connected therewith, in obtuse angular relation, the sections 14:, from which extend the respective lugs 15 containing the threaded holes 16 for receiving the binding screws 17 which fix the wires 18 thereto, the sections 15 having the inwardly turned lugs 15 for retaining the wires in place.

The base 1 has in the ends thereof the respectiv recesses 19 for the coupling parts 15 with its connections and the passages 20 connecting the recesses 5 and 19, to permit the passage of the parts 15 therethrough in assembling and to retain the parts 14-.

Having described my invention, I claim:

1. A plug switch receptacle comprising an insulating base with recesses in the back thereof, a pair of passages extending between each recess and the front of the block, and a passag extending between each recess and an end of the block, in combination with a pair of one piece contact devices having bases seated in the respective recesses and each having integral. bifurcations disposed. in its respective pair of passages, and a pair of one piece electrical couplings extending from the respectiv bases of said contacts through the respective end passages of said block and constituting connections for electrical wires.

2. A plug switch receptacle comprising an insulating base having two pairs of apertures extending therethrough, a pair of one piece contacts having respectively integral bifurcations extending through said apertures, a pair of passages in said base, one piece electrical couplings in the respective passages adapted for direct connection with conducting wires, and means extending through said base for connecting said contacts and couplings together and to said base.

8. A. plug switch receptacle comprisin an. insulating base with recesses in the back thereof and recesses in the front at the ends thereof, passages connecting the respective back and end recesses, passages extending through said base between the front thereof and each back recess, a pair of one piece contacts each having a base in a corresponding back recess and integral bifurcations extending therefrom through a pair of said passages toward the front of said block, a pair of one piece angular couplings extending through the passages between the back and end recesses, and screws extending through said base into the respectiv back recesses for connecting together and to said base the respective contacts and couplings.

4. A plug switch receptacle comprising an insulating base with recesses in the back thereof and recesses in the frontat the ends thereof; passages connecting the respective back and end recesses; passages extending through said base between the front thereof and each back recess; a pair of one piece contacts each having a base in a correspond ing back recess and integral bifurcations extending therefrom through a pair of said passages last named; a pair of one piece couplings each having a section seated in a back recess in engagement with the base of a corresponding contact, a section seated in an end recess and an intermediate section extending through a passage connecting the corresponding recesses; screws passing through said insulating base, the bases of said contacts and the sections of said couplings in said back recesses so as to draw them together, and screws passing through the sections of said couplings in said end rccesses and into said base to hold said sections and secure wires thereto.

In testimony whereof I have hereunto set my name this 7th day of June, 1921.

WALTER S. MAYER. 

